A-LevelPhysicsDynamicsOct/Nov 2009Paper 1 Q91 Mark
A supermarket trolley, total mass 30 kg, is moving at 3.0 m s⁻¹. A retarding force of 60 N is applied to the trolley for 0.50 s in the opposite direction to the trolley's initial velocity. What is the trolley's new velocity after the application of the force?
A1.0 m s⁻¹
B1.5 m s⁻¹
C2.0 m s⁻¹
D2.8 m s⁻¹
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of dynamics within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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